Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pt[nod]<muchii[nod].size()) ~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:105:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<v.size();i++) ~^~~~~~~~~ main.cpp:112:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<v.size();i++) ~^~~~~~~~~ main.cpp:136:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<aux.size();i++) ~^~~~~~~~~~~